Harvard or Yale NO LONGER require SAT Subject tests from students who attend HS that don’t routinely send students to selective universities. So, you’re in the clear. (Your GC will have to make clear that most students who attend college will attend non selective schools, as well as percentage who drop out, go into the military, and into the workforce/other non college option.)
Your guidance counselor, if s/he’s willing to help you, MUST highlight how what you’ve done is exceptional for your HS. For example indicate what percentage of the students take even 1 AP class, let alone all 9; what’s the average ACT score at your schoole; whether you have family or work obligations.
As for you, you need to highlight what’s unusual for an Ivy: that you did ALL THIS while also working 30 hours a week, AND you need to provide an additional recommendation from the restaurant owner if you’re able to, highlighting your qualities working in an adult role (ie., highlighting your “adult” qualities vs. “teenager” qualities, your character, your work ethics). In both cases, this needs to be done by giving little stories or anecdotes about you at school/at work.
For the record, working 30hours a week is considered a “strong EC”.